公开(公告)号：US12232418B2

公开(公告)日：2025-02-18

申请号：US16582911

申请日：2019-09-25

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyeseung Kang ,  Dohan Kim ,  Jungkeun Kim ,  Seungryong Joung ,  Ki-Woog Song ,  Jungsoo Park ,  Seongsu Jeon ,  Taewoo Jeon

IPC: H10K85/60 ,  H10K50/11 ,  H10K50/13 ,  H10K101/00 ,  H10K101/10 ,  H10K102/00

Abstract: An organic electroluminescence device including an anode, a cathode and a light-emission layer. The light-emission layer includes a stack of a blue light-emission layer and a red/green light concurrent-emission sub-stack. Further, the red/green light concurrent-emission sub-stack includes a stack of a red light-emission layer and a green light-emission layer. The red light-emission layer contains a red host compound including an arylamino group-substituted spirobisfluorene compound. Further, the green light-emission layer contains a green host compound including a mixture between a first green host compound and a second green host compound. Also, the first green host compound includes a bis-carbazole based compound, and the second green host compound includes a carbazole-based compound.

公开(公告)号：US12225814B2

公开(公告)日：2025-02-11

申请号：US16955128

申请日：2018-12-31

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Changwoo Kim ,  Seungjae Lee ,  Hyung Sun Kim ,  Dong Wan Ryu ,  Chang Ju Shin ,  Kipo Jang ,  Sung-Hyun Jung ,  Juyeon Jung ,  Handong Chu

IPC: C07D405/14 ,  C09K11/06 ,  H10K50/11 ,  H10K50/12 ,  H10K59/00 ,  H10K85/30 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10

Abstract: Provided are: a compound for an organic optoelectronic diode; a composition for an organic optoelectronic diode including the same; an organic optoelectronic diode including the composition for the organic optoelectronic diode as a host; and a display device including the organic optoelectronic diode.

公开(公告)号：US12225748B2

公开(公告)日：2025-02-11

申请号：US18788835

申请日：2024-07-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Tatsuyoshi Takahashi ,  Takeyoshi Watabe ,  Satomi Mitsumori

IPC: H10K50/12 ,  C07F15/00 ,  C09K11/06 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K59/12 ,  H10K59/38 ,  H10K59/40 ,  H10K85/30 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40

Abstract: A light-emitting element with high emission efficiency. The light-emitting element includes a first organic compound, a second organic compound, and a guest material. The LUMO level of the first organic compound is lower than the LUMO level of the second organic compound. The HOMO level of the first organic compound is lower than the HOMO level of the second organic compound. The HOMO level of the guest material is higher than the HOMO level of the second organic compound. The energy difference between the LUMO level of the guest material and the HOMO level of the guest material is larger than the energy difference between the LUMO level of the first organic compound and the HOMO level of the second organic compound. The guest material has a function of converting triplet excitation energy into light emission. The first organic compound and the second organic compound form an exciplex.

公开(公告)号：US12201013B2

公开(公告)日：2025-01-14

申请号：US17124532

申请日：2020-12-17

Applicant: UNIVERSAL DISPLAY CORPORATION

Inventor： Walter Yeager ,  Jui-Yi Tsai ,  Pierre-Luc T. Boudreault

IPC: H10K85/30 ,  C07D221/18 ,  C07F15/00 ,  C09K11/06 ,  H10K50/11 ,  H10K101/00 ,  H10K101/10

Abstract: Provided is an Ir compound including a ligand LA of Formula I wherein the variables are defined herein.

公开(公告)号：US12171108B2

公开(公告)日：2024-12-17

申请号：US17358660

申请日：2021-06-25

Applicant: Samsung Display Co., Ltd.

Inventor： Hojung Syn

IPC: H10K50/11 ,  C09K11/06 ,  H10K50/00 ,  H10K85/30 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40 ,  H10K102/00

Abstract: An organic electroluminescence device according to an embodiment includes a first electrode, a hole transport region disposed on the first electrode, an exciton diffusion layer disposed on the hole transport region and including a first host represented by Formula 1, an emission layer disposed on the exciton diffusion layer and including a second host, a third host, and a phosphorescent dopant, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region. The organic electroluminescence device exhibits high efficiency and a long service life.

公开(公告)号：US12167689B2

公开(公告)日：2024-12-10

申请号：US17842520

申请日：2022-06-16

Applicant: LG CHEM, LTD.

Inventor： Min Woo Jung ,  Dong Hoon Lee ,  Tae Yoon Park ,  Seong Mi Cho ,  Jeong Wook Mun ,  Jung Ha Lee ,  Mi Young Chae

IPC: H10K85/60 ,  C07D405/04 ,  C07D405/10 ,  C07D405/14 ,  C07D409/04 ,  C07D409/10 ,  C07D409/14 ,  C07F7/08 ,  C09K11/06 ,  H05B33/20 ,  H10K50/11 ,  H10K50/12 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/81 ,  H10K50/82 ,  H10K85/30 ,  H10K85/40 ,  H10K101/10 ,  H10K101/00

Abstract: Provided is a heterocyclic compound of Chemical Formula 1: wherein: X1 is O or S; L1 is a single bond or an unsubstituted phenylene; L2 is a single bond, or a substituted or unsubstituted: phenylene, naphthylene, or biphenylenyl; Y1 to Y3 are each independently N or CR3, where at least one is N; Ar1a and Ar1b are each independently a substituted or unsubstituted: C6-60 aryl or C1-60 heteroaryl containing 1 to 3 heteroatoms selected from N, O and S; R1 and R2 are each independently hydrogen, deuterium, cyano, or a substituted or unsubstituted C1-10 alkyl; each R3 is independently hydrogen, deuterium, halogen, cyano, nitro, amino, or a substituted or unsubstituted: C1-60 alkyl, C1-60 haloalkyl, C1-60 alkoxy, a C1-60 haloalkoxy, C3-60 cycloalkyl, C2-60 alkenyl, C6-60 aryl, C6-60 aryloxy, or a C1-60 heteroaryl containing at least one heteroatom selected from N, O and S; and an organic light emitting device comprising the same.

公开(公告)号：US20240407263A1

公开(公告)日：2024-12-05

申请号：US18640976

申请日：2024-04-19

Applicant: Samsung Display Co., Ltd.

Inventor： TAEIL KIM ,  SUN YOUNG PAK ,  JUNHA PARK ,  MinJae SUNG ,  MUN-KI SIM ,  CHANSEOK OH ,  MINJUNG JUNG ,  Giwoong HAN ,  Seonhyoung HUR

IPC: H10K85/60 ,  C07F5/02 ,  C09K11/06 ,  H10K50/12 ,  H10K101/00

Abstract: A light-emitting element including a first electrode, a second electrode on the first electrode, and an emission layer between the first electrode and the second electrode is provided. The light-emitting layer includes a fused polycyclic compound having a pentacyclic core that includes three aromatic rings fused by one boron and two nitrogen atoms. A first substituent that excludes hydrogen and deuterium is connected to the pentacyclic core at an ortho-position of the boron.

公开(公告)号：US20240407253A1

公开(公告)日：2024-12-05

申请号：US18636527

申请日：2024-04-16

Applicant: UNIVERSAL DISPLAY CORPORATION

Inventor： Henry Carl HERBOL ,  Eric A. MARGULIES ,  Ivan MILAS ,  Nicholas J. THOMPSON ,  Michael FUSELLA ,  Geza SZIGETHY ,  Tyler FLEETHAM ,  Sean Michael RYNO

IPC: H10K85/40 ,  C09K11/06 ,  H10K50/12 ,  H10K50/854 ,  H10K85/30 ,  H10K85/60 ,  H10K101/00 ,  H10K101/25 ,  H10K101/30

Abstract: Provided is a composition A that includes: a first dopant; and a first host; where the first dopant has a HOMO energy HOMODopant and a LUMO energy LUMODopant; the first host has a HOMO energy HOMOHost and a LUMO energy LUMOHost; |LUMOHost−HOMODopant|=X1; |LUMODopant−HOMOHost|=X2; the first dopant has an optical bandgap energy, Y; at least one of X1 and X2 is less than or equal to Y+0.026 eV; the composition A has a vertical dipole ratio VDR(A); composition B is a reference composition comprising the first dopant and a second host, wherein the second host is the composition B having a vertical dipole ratio VDR(B); the ratio of the first dopant and the first host in the composition A is identical to the ratio of the first dopant and second host in the composition B; and VDR(A)−VDR(B) is ≥0.05.

公开(公告)号：US20240407185A1

公开(公告)日：2024-12-05

申请号：US18039195

申请日：2021-12-01

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Tetsuya MASUDA ,  Emiko KAMBE ,  Masato NAKAMURA ,  Satomi TASAKI

IPC: H10K50/11 ,  H10K85/60 ,  H10K101/00 ,  H10K101/30 ,  H10K102/00

Abstract: An organic EL device includes a first emitting layer and a second emitting layer, in which the first emitting layer contains a first host material, the second emitting layer contains a second host material, the first emitting layer at least contains a first emitting compound that emits light having a maximum peak wavelength of 500 nm or less, the second emitting layer at least contains a second emitting compound that emits light having a maximum peak wavelength of 500 nm or less, a total of a film thickness of the first emitting layer and a film thickness of the second emitting layer is 20 nm or less, and a triplet energy of the first host material T1(H1) and a triplet energy of the second host material T1(H2) satisfy a relationship of (Numerical Formula 1): T1(H1) greater than T1(H2).

公开(公告)号：US20240381767A1

公开(公告)日：2024-11-14

申请号：US18783500

申请日：2024-07-25

Applicant: DuPont Specialty Materials Korea Ltd.

Inventor： Young-Kwang KIM ,  Hong-Se OH ,  Ji-Song JUN ,  Chi-Sik KIM ,  Kyoung-Jin PARK ,  Doo-Hyeon MOON

IPC: H10K85/60 ,  C07D491/18 ,  C09K11/06 ,  H10K50/11 ,  H10K101/00 ,  H10K101/10

Abstract: The present disclosure relates to an organic electroluminescent compound, an organic electroluminescent material comprising the same, and an organic electroluminescent device. By comprising the organic electroluminescent compound according to the present disclosure, an organic electroluminescent device having low driving voltage and/or high luminous efficiency and/or long lifespan can be provided.